Please use this identifier to cite or link to this item: https://repositorio.inpa.gov.br/handle/1/14979
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dc.contributor.authorSiqueira, Sérgio-
dc.contributor.authorAguiar-Júnior, Odair-
dc.contributor.authorLima, Albertina Pimental-
dc.contributor.authorPimentel, Shirlei Maria Recco-
dc.date.accessioned2020-05-07T13:59:17Z-
dc.date.available2020-05-07T13:59:17Z-
dc.date.issued2013-
dc.identifier.urihttps://repositorio.inpa.gov.br/handle/1/14979-
dc.description.abstractThe current taxonomy of most Atelopus species is based on morphological and color data only. Recent studies suggest that A. spumarius may represent a species complex assigned under the same name. Karyotypic data and description of sperm ultrastructure for 13 specimens of A. spumarius are presented here for the first time. A chromosomal analysis revealed 2n = 22 chromosomes, with centromeric heterochromatin in all pairs and a nucleolar organizer region (NOR) on the telomere of pair 7. The sperm was of the bufonoid type, presenting a filiform nucleus covered by an acrosomal complex and a mitochondrial collar in the neck region. The tail was composed of an axoneme, an undulating membrane and an axial rod. A karyotype analysis of A. spumarius showed the same chromosome number and similar chromosomal morphology as described for congeneric species, with slight differences probably resulting from pericentric inversions. The NOR location (on pair 7) was the same as that observed for species belonging to the genus Rhinella. The spermatological findings indicate a close relationship between Atelopus and the bufonoid lineage. The present data are useful for reference in future studies to determine whether more than one species are assigned to A. spumarius. © 2013, Sociedade Brasileira de Genética. Printed in Brazil.en
dc.language.isoenpt_BR
dc.relation.ispartofVolume 36, Número 4, Pags. 528-532pt_BR
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/br/*
dc.subjectAcrosomeen
dc.subjectAnimals Cellen
dc.subjectAnuraen
dc.subjectAtelopus Spumariusen
dc.subjectAxonemeen
dc.subjectCell Nucleusen
dc.subjectCentromereen
dc.subjectChromosome Analysisen
dc.subjectChromosome Noren
dc.subjectChromosome Numberen
dc.subjectChromosome Structureen
dc.subjectCytogeneticsen
dc.subjectHeterochromatinen
dc.subjectKaryotypeen
dc.subjectMaleen
dc.subjectMitochondrionen
dc.subjectNonhumanen
dc.subjectRhinellaen
dc.subjectSemen Analysisen
dc.subjectSpermatozoon Tailen
dc.subjectTelomereen
dc.subjectUltrastructureen
dc.titleCytogenetics and sperm ultrastructure of Atelopus spumarius (Anura, Bufonidae) from the Brazilian Amazonen
dc.typeArtigopt_BR
dc.identifier.doi10.1590/S1415-47572013005000038-
dc.publisher.journalGenetics and Molecular Biologypt_BR
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